I have installed my card and it seems that the USB ports on the back are not working. the control panel device manager shows that the Fresco Logic xHCI (USB3) Controller FL1100 Series is OK but the Fresco Logic xHCI (USB3) Root hub shows a warning triangle. When I look a the properties, it shows the message:This device is not working properly because Windows cannot load the drivers required for this device (Code 31). The driver shows up as Fresco Logic 05/01/2015 Driver version 3.6.4.0Any ideas on how to fix?